Reeside, John B. <br/><br/>
The fauna of the so-called Dakota formation of Northern Central Colorado and its equivalent in southeastern wyoming. 

 - Washington  Government Printing Office  1923 
 - pp. 199-212 
<br/><br/> Impreso 
<br/><br/><br/>Ingles 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA